Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Gregory J & Ronald J Nowak Ptrs

Eyewear Supplier in Warren, MI · enumerated 2008 · authorized official Ronald Nowak, Partner.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1659549269

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Registry record

Entity type Organization (Type 2)

Legal business name Gregory J & Ronald J Nowak Ptrs

Other name <Unavail>

Practice address 13734 E 12 Mile Rd, Warren, MI, 48088

Phone (586) 773-8260

Fax (586) 773-7940

Enumeration date Feb 16, 2008

Last updated in NPPES Jul 21, 2022

Taxonomy & classification

332H00000X Eyewear Supplier Suppliers Primary

Authorized official

Name Ronald Nowak

Title Partner

Phone (586) 773-8260

Other identifiers

Identifier	Type	State	Issuer
540E00825	Other	MI	BCBS

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2022-07-21. Verify at npiregistry.cms.hhs.gov.

Where is Gregory J & Ronald J Nowak Ptrs located?

The practice location on file with NPPES is in Warren, MI.

Providers at this address

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Ronald Nowak Optician · Warren, MI NPI 1013053586

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-07-21.